Llyfr 36,312 Cylchgrawn 3,292 Cyfresol 1,843 Traethawd Ymchwil 950 Trafodyn Cynhadledd 872 Electronig 868 Dogfen y Llywodraeth 476 Anhysbys 435 Pennod Llyfr 55 Deunydd Cyfeirio 40 Llawysgrif 34 Sain 33 Papur Newydd 12 Sgôr Cerddorol 10 Cit 4 Llun 4 Map 2 Erthygl 1 Gweld pob un ...

H - Gwyddor Gymdeithasol 42,085

National Bureau of Economic Research 2,328 American Academy of Political and Social Science 930 Massachusetts Institute of Technology Center for International Studies 654 ebrary, Inc 281 De Gruyter 260 ProQuest (Firm) 158 Inter-university Consortium for Political and Social Research 150 University of Pennsylvania Center for Analytic Research in Economics and the Social Sciences 147 Bradford H. Gray Collection in the History of Social Thought (Beinecke Rare Book and Manuscript Library) 146 SpringerLink (Online service) 126 Denny, George V., Jr (George Vernon), 1899-1959 100 Taylor & Francis 100 Brookings Institution 96 United States Department of State. External Research Staff 87 National Broadcasting Company 86 Massachusetts Institute of Technology Center for International Studies. Economic Development Program 80 Taylor & Francis eBooks 79 Nagel, Stuart S., 1934- 78 Rand Corporation 76 Weber, Max, 1864-1920 76 Unesco 74 Denzin, Norman K 70 Social Science Research Council (U.S.) 64 American Evaluation Association 62 Bloomfield, Lincoln P., 1920-2013 62 Griffith, William E 61 National Council for the Social Studies 59 Town Hall, Inc 59 King, Clyde L (Clyde Lyndon), 1879-1937 55 Cambridge University Press 54 Gweld pob un ...

English 29,367 German 2,756 French 2,746 Spanish 2,031 Chinese 1,262 Russian 1,059 Japanese 925 Italian 583 Portuguese 495 Dutch 371 Korean 325 Arabic 235 Polish 230 Turkish 203 Indonesian 121 Thai 103 Hebrew 88 Swedish 86 Persian 69 Vietnamese 66 Ukrainian 65 Czech 63 Undetermined 55 Danish 54 Romanian 48 Multiple 42 Greek 40 Norwegian 40 Malay 34 Croatian 33 Gweld pob un ...

Periodicals 4,324 Electronic books 2,309 History 1,753 Congresses 1,422 Conference papers and proceedings 1,054 Technical reports 848 Dictionaries 798 Bibliography 587 Case studies 516 Electronic journals 456 Biography 424 Textbooks 400 Directories 366 Biographies 309 Academic theses 275 Bibliographies 270 Handbooks, manuals, etc 238 Statistics 232 Périodiques 211 Périodiques 199 Handbooks and manuals 197 Thèses et écrits académiques 195 Internet videos 169 Nonfiction television programs 167 Periodical 125 Encyclopedias 116 Aufsatzsammlung 113 Abstracts 103 Academic Dissertation 97 dissertations 95 Gweld pob un ...

20th century 582 1900-1999 232 1945- 231 21st century 152 19th century 148 1864-1920 121 1900 - 1999 100 Since 1945 100 1918-1945 84 2000-2099 77 1918- 71 1945-1989 71 18th century 60 1939-1945 58 Geschichte 56 1818-1883 54 Colonial period, ca. 1600-1775 52 To 1775 47 1800-1899 41 1989- 39 1933-1945 37 20e siècle 37 1914- 31 17th century 29 1800-1999 29 1991- 29 Since 1918 29 1600-1775 28 1700-1799 28 1947- 28 Gweld pob un ...

United States 5,049 China 796 France 698 Great Britain 649 Germany 636 Japan 608 Latin America 442 Europe 393 Soviet Union 389 India 364 California 276 Canada 273 Developing countries 273 Nigeria 270 Brazil 260 Africa 246 Russia (Federation) 244 Mexico 228 Germany (West) 181 Turkey 174 Indonesia 162 Italy 158 Korea (South) 157 New York (State) 149 États-Unis 135 Chile 134 Netherlands 130 Poland 121 Asia 120 Belgium 120 Gweld pob un ...